Read the comic here.
"The Robot Army" is another Matrix story reference - Basically Neo is just trying to bring the master strategist/fighter back home to his correct story - but instead he's left with a Kid's show sidekick. You can understand why he's upset with the situation.
These guest stars will be around for a bit - if you haven't seen at least the first Matrix movie you'll probably want to rent it just so you're not missing any in-jokes. Just sayin'